Longman Dictionary of Contemporary English
The Collaborative International Dictionary
juvenile delinquent \ju"ve*nile de*lin"quent\, n. A child or person of minor age who commits acts which would be considered criminal if performed by an adult, such as theft, vandalism, or violence; especially, one who habitually acts in such an antisocial manner and cannot be controlled by parents. Abbreviated JD.
Wiktionary
n. (context legal English) A persistent young offender; an antisocial minor, one who has committed criminal acts such as theft or violence.
WordNet
n. a young offender [syn: delinquent]
Usage examples of "juvenile delinquent".
Then suddenly, usually by law on his eighteenth birthday, this so-called 'juvenile delinquent' becomes an adult criminal and sometimes wound up in only weeks or months in a death cell awaiting execution for murder.
The other assistant was a juvenile delinquent named Trench who amused himself between patients by throwing scalpels at a wooden plaque presented to his employer by the United Jewish Appeal.
The ringleader of the gang, Geoffrey Hammond, was not a hardened juvenile delinquent.
The second incident was a juvenile delinquent escapade committed by an asocial teenager.
It shook me to find that to practically everyone he was still juvenile delinquent, lazy trash, no-good off-scouring, potential criminal, burden.
To become a bona fide juvenile delinquent, a kid had to be charged, found guilty, and the case adjudicated.